1 // <script type="text/javascript">
2 XObject = imports.XObject.XObject;
3 File = imports.File.File;
5 TextStream = imports['JSDOC/TextStream.js'].TextStream;
6 TokenReader = imports['JSDOC/TokenReader.js'].TokenReader;
7 ScopeParser = imports['JSDOC/ScopeParser.js'].ScopeParser;
8 TokenStream = imports['JSDOC/TokenStream.js'].TokenStream;
9 CompressWhite = imports['JSDOC/CompressWhite.js'].CompressWhite;
11 GLib = imports.gi.GLib;
23 Packer = imports['JSDOC/Packer.js'].Packer;
26 files : [ "/location/of/file1.js", "/location/of/file2.js", ... ],
27 target : "/tmp/output.js",
28 debugTarget : "/tmp/output.debug.js", // merged file without compression.
29 translateJSON: "/tmp/translate.json",
34 "/location/of/temp_batch_dir",
35 "/location/of/output-compacted-file.js",
36 "/location/of/output-debug-merged-file.js"
41 * Notes for improving compacting:
42 * if you add a jsdoc comment
49 * directly before an eval statement, it will compress all the code around the eval,
50 * and not rename the variables 'avarname'
52 * Dont try running this on a merged uncompressed large file - it's used to be horrifically slow. not sure about now..
53 * Best to use lot's of small classes, and use it to merge, as it will cache the compaction
57 * Notes for translation
58 * - translation relies on you using double quotes for strings if they need translating
59 * - single quoted strings are ignored.
61 * Generation of indexFiles
62 * - translateIndex = the indexfile
69 Packer = function(cfg)
72 XObject.extend(this, cfg);
75 this.loadSourceFile();
83 this.timer = new Date() * 1;
90 * @prop srcfiles {String} file containing a list of files/or classes to use.
95 * @prop files {Array} list of files to compress (must be full path)
99 * @prop target {String} target to write files to - must be full path.
103 * @prop debugTarget {String} target to write files debug version to (uncompacted)- must be full path.
105 debugTarget : '', // merged file without compression.
107 * @prop tmpDir {String} (optional) where to put the temporary files.
108 * if you set this, then files will not be cleaned up
112 translateJSON : '', // json based list of strings in all files.
115 * @prop cleanup {Boolean} (optional) clean up temp files after done -
116 * Defaults to false if you set tmpDir, otherwise true.
121 * @prop prefix {String} (optional) prefix of directory to be stripped of when
122 * Calculating md5 of filename
125 out : '', // if no target is specified - then this will contain the result
127 packAll : function() // do the packing (run from constructor)
130 //this.transOrigFile= bpath + '/../lang.en.js'; // needs better naming...
131 //File.write(this.transfile, "");
133 File.write(this.target, "");
136 if (this.debugTarget) {
137 File.write(this.debugTarget, "");
140 for(var i=0; i < this.files.length; i++) {
141 var file = this.files[i];
143 print("reading " +file );
144 if (!File.isFile(file)) {
145 print("SKIP (is not a file) " + file);
149 if (this.debugTarget) {
150 File.append(this.debugTarget, File.read(file));
152 // it's a good idea to check with 0 compression to see if the code can parse!!
155 //File.append(dout, str +"\n");
159 var minfile = this.tmpDir + '/' +file.replace(/\//g, '.');
162 // let's see if we have a min file already?
163 // this might happen if tmpDir is set ..
164 if (true && File.exists(minfile)) {
165 var mt = File.mtime(minfile);
166 var ot = File.mtime(file);
167 print("compare : " + mt + "=>" + ot);
171 // then the min'files time is > than original..
172 var str = File.read(minfile);
173 print("using MIN FILE "+ minfile);
175 File.append(outpath, str + "\n");
184 print("COMPRESSING ");
185 //var codeComp = pack(str, 10, 0, 0);
186 if (File.exists(minfile)) {
187 File.remove(minfile);
189 var str = File.read(file);
190 var str = this.pack(str, file, minfile);
192 File.write(minfile, str);
198 if (this.translateJSON) {
201 print("MERGING LANGUAGE");
202 var out = "if (typeof(_T) == 'undefined') { _T={};}\n"
204 File.write(this.target, out);
211 File.write(this.translateJSON, "");
212 for(var i=0; i < this.files.length; i++) {
213 var file = this.files[i];
214 var transfile= this.tmpDir + '/' +file.replace(/\//g, '.') +'.lang.trans';
215 var transmd5 = this.tmpDir + '/' +file.replace(/\//g, '.') +'.lang';
216 if (File.exists(transmd5)) {
217 var str = File.read(transmd5);
220 File.append(this.target, str + "\n");
222 this.out += str + "\n";
227 File.remove(transmd5);
230 if (File.exists(transfile)) {
231 var str = File.read(transfile);
233 File.append(this.translateJSON, str);
236 File.remove(transfile);
244 print("MERGING SOURCE");
246 for(var i=0; i < this.files.length; i++) {
247 var file = this.files[i];
248 var minfile = this.tmpDir + '/' + file.replace(/\//g, '.');
251 if (!File.exists(minfile)) {
254 var str = File.read(minfile);
255 print("using MIN FILE "+ minfile);
258 File.append(this.target, str + "\n");
260 this.out += str + "\n";
265 File.remove(minfile);
275 * Core packing routine for a file
277 * @param str - str source text..
278 * @param fn - filename (for reference?)
279 * @param minfile - min file location...
283 pack : function (str,fn,minfile)
286 var tr = new TokenReader( { keepDocs :true, keepWhite : true, keepComments : true, sepIdents : true });
287 this.timerPrint("START" + fn);
289 // we can load translation map here...
291 var toks = tr.tokenize(new TextStream(str)); // dont merge xxx + . + yyyy etc.
293 // at this point we can write a language file...
294 if (this.translateJSON) {
296 this.writeTranslateFile(fn, minfile, toks);
299 this.activeFile = fn;
301 // and replace if we are generating a different language..
303 this.timerPrint("Tokenized");
305 var sp = new ScopeParser(new TokenStream(toks));
306 this.timerPrint("Converted to Parser");
308 sp.buildSymbolTree();
309 this.timerPrint("Built Sym tree");
310 sp.mungeSymboltree();
311 this.timerPrint("Munged Sym tree");
312 print(sp.warnings.join("\n"));
313 var out = CompressWhite(sp.ts, this);
314 this.timerPrint("Compressed");
321 timerPrint: function (str) {
322 var ntime = new Date() * 1;
323 var tdif = ntime -this.timer;
325 print('['+tdif+']'+str);
330 * Translation concept...
331 * -> replace text strings with _T....
332 * -> this file will need inserting at the start of the application....
333 * -> we need to generate 2 files,
334 * -> a reference used to do the translation, and the _T file..
338 writeTranslateFile : function(fn, minfile, toks)
343 toks.forEach(function (t) {
344 if (t.type == 'STRN' && t.name == 'DOUBLE_QUOTE') {
345 var sval = t.data.substring(1,t.data.length-1);
346 var ffn = fn.substring(_this.prefix.length);
347 map[sval] = _this.md5(ffn + '-' + sval);
351 var transfile = minfile + '.lang.trans';
352 var transmd5 = minfile + '.lang';
353 print("writeTranslateFile " + transfile);
356 if (File.exists(transfile)) {
357 File.remove(transfile);
359 if (File.exists(transmd5)) {
360 File.remove(transmd5);
362 for(v in map) { i++; break };
364 return; // no strings in file...
366 var ffn = fn.substring(this.prefix.length);
369 File.write(transfile, "\n'" + ffn + "' : {");
373 File.write(transmd5, '');
375 File.append(transfile, l + "\n\t \"" + v + '" : "' + v + '"');
377 // strings are raw... - as the where encoded to start with!!!
378 File.append(transmd5, '_T["' + this.md5(ffn + '-' + v) + '"]="'+v+"\";\n");
380 File.append(transfile, "\n},"); // always one trailing..
384 md5 : function (string)
387 return GLib.compute_checksum_for_string(GLib.ChecksumType.MD5, string, string.length);
390 stringHandler : function(tok)
392 //print("STRING HANDLER");
393 // callback when outputing compressed file,
395 if (!this.translateJSON) {
396 // print("TURNED OFF");
399 if (tok.name == 'SINGLE_QUOTE') {
403 var sval = data.substring(1,data.length-1);
404 // we do not clean up... quoting here!??!!?!?!?!?
407 // blank with tabs or spaces..
408 //if (!sval.replace(new RegExp("(\\\\n|\\\\t| )+",'g'), '').length) {
409 // return tok.outData;
412 var sval = tok.data.substring(1,data.length-1);
413 var fn = this.activeFile.substring(this.prefix.length);
416 return '_T["' + this.md5(fn + '-' + sval) + '"]';